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Author : John Andrew Gaydos
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.:/5 (223 download)
Download or read book The Dependence of Contact Angles on Drop Size and Line Tension written by John Andrew Gaydos and published by . This book was released on 1986 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drop Size Dependence of Contact Angles and Line Tension written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alidad Amirfazli
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (133 download)
Download or read book Drop Size Dependence of Contact Angles and Line Tension written by Alidad Amirfazli and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The generalized theory of capillarity identifies line tension as a natural and necessary extension of analysis for the systems with multi-phase boundary curves. Theoretically, finding an estimate for line tension is very complicated. Modeling of molecular interactions almost always requires significant simplifications which would cause considerable uncertainty in the resulting values. Experimentally, line tension is typically small and hence much more difficult to measure than surface tension. A review of the literature shows that there is little consensus among researchers with respect to both sign and magnitude of line tension. Our preferred method to determine line tension for solid-liquid-vapor systems takes advantage of dependence of contact angles on the drop size according to the modified Young equation (Eq. 2.22). Using a sensitive and accurate contact angle and drop size measurement methodology, i.e., Axisymmetric Drop Shape Analysis (ADSA), a large number of contact angle data were produced, i.e., 27, solid-liquid-vapor systems were studied. Potential artifacts that may effect the observed drop size dependence of contact angles including contortions of the three-phase line, solid surface deformation, thin film effect, and heterogeneity of the solid surface, were considered. They all proved insignificant either by the use of models developed to describe and analyze the effect of the particular feature, or by thermodynamic reasoning, or the use of available literature (see section 4.4). It was established that line tension was positive for all of the systems studied. The magnitude of line tension determined ranges from below from 10-7 J/m for systems with low contact angles to 10-4 J/m for the high energy system studied (the range reflects mainly the material properties such as intermolecular forces). Exploratory steps taken to examine line tension behavior near the wetting transition suggested that the line tension decreases as the contact angle decreases and perhaps vanishes at complete wetting. A high energy system, i.e., liquid tin on a silica surface, was also studied. The seemingly large line tension value obtained, i.e., 10-4 J/m, should not be entirely surprising, as it was found that there exists a positive correlation between line tension and solid-liquid interfacial tension.
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Author : Alidad Amirfazli
Publisher : National Library of Canada = Bibliothèque nationale du Canada
ISBN 13 : 9780612590120
Total Pages : 402 pages
Book Rating : 4.5/5 (91 download)
Download or read book Drop Size Dependence of Contact Angles and Line Tension [microform] written by Alidad Amirfazli and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 2001 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.W. Neumann
Publisher : CRC Press
ISBN 13 : 1420009664
Total Pages : 768 pages
Book Rating : 4.4/5 (2 download)
Download or read book Applied Surface Thermodynamics written by A.W. Neumann and published by CRC Press. This book was released on 2010-10-13 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface thermodynamics forms the foundation of any meaningful study of capillarity and wetting phenomena. The second edition of Applied Surface Thermodynamics offers a comprehensive state-of-the-art treatment of this critical topic. It provides students and researchers with fundamental knowledge and practical guidelines in solving real-world proble
Author : Michele Ferrari
Publisher : CRC Press
ISBN 13 : 146658372X
Total Pages : 344 pages
Book Rating : 4.4/5 (665 download)
Download or read book Drops and Bubbles in Contact with Solid Surfaces written by Michele Ferrari and published by CRC Press. This book was released on 2016-04-19 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third volume in a series dedicated to colloids and interfaces, Drops and Bubbles in Contact with Solid Surfaces presents an up-to-date overview of the fundamentals and applications of drops and bubbles and their interaction with solid surfaces. The chapters cover the theoretical and experimental aspects of wetting and wettability, liquid-solid
Author : Eli Ruckenstein
Publisher : CRC Press
ISBN 13 : 1138032174
Total Pages : 541 pages
Book Rating : 4.1/5 (38 download)
Download or read book Kinetic Theory of Nucleation written by Eli Ruckenstein and published by CRC Press. This book was released on 2016-07-06 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore a Kinetic Approach to the Description of Nucleation - An Alternative to the Classical Nucleation TheoryKinetic Theory of Nucleation presents an alternative to the classical theory of nucleation in gases and liquids-the kinetic nucleation theory of Ruckenstein-Narsimhan-Nowakowski (RNNT). RNNT uses the kinetic theory of fluids to calculate t
Author : K. L. Mittal
Publisher : BRILL
ISBN 13 : 9004169326
Total Pages : 412 pages
Book Rating : 4.0/5 (41 download)
Download or read book Contact Angle, Wettability and Adhesion written by K. L. Mittal and published by BRILL. This book was released on 2009-09-30 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of wettability (measured in terms of contact angle) is of tremendous interest from both fundamental and applied points of view, Wettability plays an essential role in many industrial processes, so an understanding of factors dictating wettability and how to modulate it is of paramount importance. In the last years there has been an explosive interest in superhydrophobic surfaces (i.e., surfaces with water contact angle of 150° or higher) because of their relevance/importance in many areas ranging from self-cleaning windows to nanofluidics. Also recently there has been heightened activity in the field of electrowetting. Contact Angle, Wettability and Adhesion, Volume 6 is divided into four parts: Part 1: Fundamental Aspects; Part 2: Wettability Control/Modification; Part 3: Superhydrophobic Surfaces; and Part 4: Surface Free Energy and Relevance of Wettability in Adhesion. The topics covered include: a guide to the equilibrium contact angles maze: fundamental aspects of wetting of rough and chemically heterogeneous surfaces: work of adhesion for rock-oil-brine systems; Is the world basic?; wettability control/modification using various approaches; superhydrophobic surfaces and ways to impart superhydrophobicity; adsorption on superhydrophobic surfaces; solid surface energy determination; surface modification of different materials; relevance of wettability and adhesion aspects in a variety of reinforced composites. In essence, this volume reflects the cumulative wisdom of many active and renowned researchers and provides a commentary on contemporary research in the fascinating world of contact angles and wettability. This volume and its predecessors (5 volumes), containing bountiful information, will be of much value to anyone interested/involved in controlling wetting phenomena and their applications.
Author : D. Mobius
Publisher : Elsevier
ISBN 13 : 0080530524
Total Pages : 729 pages
Book Rating : 4.0/5 (85 download)
Download or read book Drops and Bubbles in Interfacial Research written by D. Mobius and published by Elsevier. This book was released on 1997-12-09 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shape of drops and bubbles is the centre of interest for many interfacial scientists. This book describes the most recent accomplishments to make use of drops and bubbles in fundamental research and application. After a general introduction into the mechanics of liquid menisci, chapters are dedicated to methods based on drops or bubbles. The chapters about the three main drop experiments provide the theoretical basis, a description of experimental set-ups, specific advantages and disadvantages, correction and calibration problems, experimental examples and their interpretation: pendent and sessile drop, drop volume, and spinning drop technique. The chapter about capillary pressure methods summarises different techniques and gives examples of applications, for instance measurements under microgravity. The maximum bubble pressure technique as a particular capillary pressure method is described, with emphasis on the most recent developments which made this technique applicable to extremely short adsorption times, down to the range of milliseconds and less. Problems connected with aerodynamics and hydrodynamics are discussed and used to show the limits of this widely used standard method. The oscillating bubble technique provides information not available by other techniques, for example about the dilational rheology of adsorption layers and relaxation processes at the interface. The description of rising bubbles in surfactant solutions will contain the hydrodynamic basis as well as the theoretical description of the effect of interfacial layers on the movement of bubbles. Besides the theoretical basis experimental data, such as water purification, flotation processes etc. and the relevance for practical applications will be presented. The chapter about lung alveols demonstrates how important bubbles built by biological membranes are in everyday life. The relevance for medicine and biology as well as model studies is discussed. An important example for the application of drops is metallurgy, where the surface tension of metals and alloys is an important parameter for many applications. The chapters on drop shape analysis by using fibre technique and on force measurements between emulsion droplets are of much practical relevance. Lists of references and symbols are given separately at the end of each chapter while a common subject index is given at the end of the book.
Author : Jan Spelt
Publisher : CRC Press
ISBN 13 : 9780585157719
Total Pages : 670 pages
Book Rating : 4.1/5 (577 download)
Download or read book Applied Surface Thermodynamics written by Jan Spelt and published by CRC Press. This book was released on 1996-06-27 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a treatment of applied surface dynamics in relation to contact angles and surface tensions, providing a foundation for the subject and detailed presentations of recent techniques. The work supplies a theoretical framework for the study and measurement of surface tensions and contact angles, and acts as a day-to-day guide for laboratory pract
Author : P Chen
Publisher : Taylor & Francis US
ISBN 13 : 9781855739284
Total Pages : 712 pages
Book Rating : 4.7/5 (392 download)
Download or read book Molecular Interfacial Phenomena of Polymers and Biopolymers written by P Chen and published by Taylor & Francis US. This book was released on 2005-07-22 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines three fundamental areas of interest to the science and engineering community, these being material science, nanotechnology and molecular engineering. Although there have been various results published in this field, there has yet to be a fully comprehensive review. This book covers key research on molecular mechanisms and thermodynamic behaviour of (bio)polymer surfaces and interfaces, from theoretical and experimental perspectives.
Author : Ping Chen
Publisher : CRC Press
ISBN 13 : 1315638533
Total Pages : 886 pages
Book Rating : 4.3/5 (156 download)
Download or read book Material Science and Environmental Engineering written by Ping Chen and published by CRC Press. This book was released on 2015-12-30 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt: Material Science and Environmental Engineering presents novel and fundamental advances in the fields of material science and environmental engineering. Collecting the comprehensive and state-of-art in these fields, the contributions provide a broad overview of the latest research results, so that it will proof to be a valuable reference book to aca
Author : Eli Ruckenstein
Publisher : CRC Press
ISBN 13 : 0429687052
Total Pages : 1012 pages
Book Rating : 4.4/5 (296 download)
Download or read book Wetting Theory written by Eli Ruckenstein and published by CRC Press. This book was released on 2018-12-04 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetting Theory discusses the numerous practical applications of wetting, such as preparing self-cleaning surfaces, manufacturing artificial blood vessels, and developing new lubricants and nonadhesive dishes. As part of Wetting: Theory and Experiments, Two-Volume Set, this volume provides new, critical insights into the theory of wetting. Chapters are arranged to allow readers to follow the development of a suggested approach (static and dynamics properties of wetting) and how these tools are applied to specific problems. Main attention is given to nanoscale wetting (nanodrops on solid surfaces, liquid in the nanoslit) on the basis of microscopic density functional theory and fluid dynamics on solid surfaces on the basis of hydrodynamic equations. Aimed at engineers, physical scientists, and materials scientists, this volume addresses the key areas of wetting, providing invaluable insights to the field.
Author : Zhi-Kang Xu
Publisher : Springer Science & Business Media
ISBN 13 : 3540884130
Total Pages : 345 pages
Book Rating : 4.5/5 (48 download)
Download or read book Surface Engineering of Polymer Membranes written by Zhi-Kang Xu and published by Springer Science & Business Media. This book was released on 2009-05-15 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Engineering of Polymer Membranes covers the processes that modify membrane surfaces to improve their in-service performance, meaning, to confer surface properties which are different from the bulk properties. Purposes may be to minimize fouling, modulate hydrophilicity/ hydrophobicity, enhance biocompatibility, create diffusion barriers, provide functionalities, mimic biomembranes, fabricate nanostructures, etc. First, the basics of surface engineering of polymer membranes are covered. Then topics such as surface modification by graft polymerization and macromolecule immobilization, biomimetic surfaces, enzyme immobilization, molecular recognition, and nanostructured surfaces are discussed. This book provides a unique synthesis of the knowledge of the role of surface chemistry and physics in membrane science. Dr. Zhikang Xu of the Institute of Polymer Science of Zhejiang University has eight Chinese patents and in 2006 was honored as a Distinguished Young Scholar by the National Natural Science Foundation of China (NNSFC).
Author : Girma Biresaw
Publisher : CRC Press
ISBN 13 : 1439889619
Total Pages : 597 pages
Book Rating : 4.4/5 (398 download)
Download or read book Surfactants in Tribology, Volume 3 written by Girma Biresaw and published by CRC Press. This book was released on 2013-03-20 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: The manufacture and use of almost every consumer and industrial product rely on application of advanced knowledge in surface science and tribology. These two disciplines are of critical importance in major economic sectors, such as mining, agriculture, manufacturing (including metals, plastics, wood, computers, MEMS, NEMS, appliances), construction
Author : Hiroshi Mizumachi
Publisher : CRC Press
ISBN 13 : 9789056995881
Total Pages : 950 pages
Book Rating : 4.9/5 (958 download)
Download or read book Adhesion Science and Technology written by Hiroshi Mizumachi and published by CRC Press. This book was released on 1997-10-28 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the papers from the 30th anniversary symposium of The Adhesion Society of Japan. It is a comprehensive treatise on the state of the science of adhesion, composite materials, pressure-sensitive adhesives, and so forth. More than half of the papers given at the symposium have been compiled and they include contributions from scientists and engineers from many countries.
Author : Dongqing Li
Publisher : Springer Nature
ISBN 13 : 3030905179
Total Pages : 201 pages
Book Rating : 4.0/5 (39 download)
Download or read book Analytical Thermodynamics written by Dongqing Li and published by Springer Nature. This book was released on 2022-04-06 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the foundations of analytical thermodynamics for graduate level. The content is based on the author’s lecture notes developed over 30 years of academic teaching. It aims to present thermodynamics to the readers as easy to understand as possible, being suitable for professors teaching advanced thermodynamics or graduate students learning thermodynamics. The chapters include the basics of analytical thermodynamics, modelling of homogeneous and heterogeneous systems, thermodynamics of interfaces and three-phase contact lines and the Second Law in engineering thermodynamics.
